PCA9535CPW,118

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Number of I/O:	16
Interface:	I²C, SMBus
Interrupt Output:	Yes
Features:	POR
Output Type:	Open Drain
Current - Output Source/Sink:	10mA, 25mA
Clock Frequency:	400kHz
Voltage - Supply:	2.3 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	24-TSSOP
Base Part Number:	PCA9535

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PCA9535CPW, 118 is classified to be an interface I/O expanders as it helps in adding additional input/output lines to systems. It offers 3 banks of 8-bit I/O registers, 1 8-bit timer that is capable to produce an alert on 1 pin and with a software addressable configuration port, it also allows for interrupt on change.The interface I/O expanders from PCA9535CPW, 118 allows for extension of functions of standard digital output/input devices. First, it provides 8-bit bidirectional input/output that actively monitors the state of the I/O pins and any changes can be easily detected with the in-built interrupt generator. The 8-bit timer captures the timer values, which can be output as pulses, or by using functions such as frequency measuring or pulse width control. In addition, PCA9535CPW, 118 offers 3 banks of 8-bit I/O registers that allows for expansion of 8 to 32 channels and these I/O registers are helpful in preventing the conflict between various I/O’s resulting in performance enhancement. Also, it provides 18 address bits that can be used conveniently with I2C UARTs, SPI and other common serial interfaces.PCA9535CPW, 118 is designed for applications where the digital inputs and outputs must be monitored, in addition to controlling pulse width, frequency measurements and alerts. It has very low power consumption, which is suitable for a wide range of battery powered applications and its I2C-bus interface enables the user to read and write the register settings for the direction and functions of the pins. PCA9535CPW, 118 comes in a Pb free, 8-pad CSP, PLCC and TSSOP package. It is suitable for telecommunication, control systems and industrial automation such as test equipment, portable devices and small industrial controllers.Its working principle is based on the I2C protocol. An I2C bus consists of two lines, a serial data line (SDA) and a serial clock line (SCL) and PCA9535CPW, 118 is connected to the bus lines as a slave device. When the PCA9535CPW, 118 is turned on, it will act as a slave device and responds to the I2C commands provided by the master device to perform various operations such as read or write to the registers.The user can read or write to any of the 8 bit I/O registers, depending on the I2C addresses. To make it compatible with the SPI and other serial interfaces, there are 18 address bits to select from. Acting as a slave device on the I2C bus, the PCA9535CPW, 118 can receive interrupts from the master device. The interrupt function can be used to detect any changes made to the input states and take necessary actions accordingly. In conclusion, PCA9535CPW, 118 provides an easy and cost-effective way to expand the number of digital inputs and outputs of the system while actively monitor their state. It can provide over 32 input/output lines and enable efficient power saving by means of its low standby power consumption. In addition, its compatibility with other serial interfaces works in favour of its application in a wide range of occasions.

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